EAS Calibration Issues

I have be trying to calibrate the heights on the newly aquirred Range Rover as the standard height setting was a little high.

I have followed the guides on here and got the settings so I was within the 470+/-7 mm for standard height.

However on disconnecting and going to take the car for a test drive I had a hard EAS fault, whihc was logged as incorrect height setting or something similar.

When I go back into EAS unlock I then notice that the sensor value on the front left sensor has gone to the default setting, I assume becuse the real value this sensor reports when set at the right height is out of spec.

Now the settings I entered into EAS to get the right setting in mm is FL 107, FR 103, RL 108, RR 105. However to get it so i don't get a hard EAS fault I have to have the following 113, 115, 108, 105 but I end up with the front still too high especially the front left.

Am I right in thinking that this suggests that the front left height sensor is worn and on its way out.

Think that maybe a correct assumption. At each setting there are parameters you cannot go above or below or a default is reverted to by the ECU.

Wammers thanks for the response.

One thing that does puzzle me a little though if it enter and write a set of sensor values to the ECU, and I then get the EAS to go to that height setting.

If I then go to the heights tab of EAS unlock and use the get heights the values are not the actual ones that height setting should be but seem to be close to them.

You need to be on a level ground with all the tyres at the correct pressure.

When you put the values in for the height the ecu tries its best to meet them within a few numbers. The live data will give you an instantaneous value and it will be a few increments out if set up correctly, uneven ground etc will make them further out, plus moving one target height up will move the others sensors a wee bit too.

I made some blocks to stick in the bump stops to calibrate it. You sit it down on them then ask for the live data, then stick it back in as the settings the ecu targets. This worked really well for me and the RR handles so much better. There is no question then that the values the ecu is trying to reach are good on level ground.

cljcars said:

You need to be on a level ground with all the tyres at the correct pressure.

When you put the values in for the height the ecu tries its best to meet them within a few numbers. The live data will give you an instantaneous value and it will be a few increments out if set up correctly, uneven ground etc will make them further out, plus moving one target height up will move the others sensors a wee bit too.

I made some blocks to stick in the bump stops to calibrate it. You sit it down on them then ask for the live data, then stick it back in as the settings the ecu targets. This worked really well for me and the RR handles so much better. There is no question then that the values the ecu is trying to reach are good on level ground.

Click to expand...

Thanks for that, yes ground is nice and level and frim have a nice level concrete taxi way at work that I used.

I intend to make some blocks up to make things easier, just not got round to get hold of some material to make them up from yet.

What is the best way to set them down on the blocks if you take that apparoch, just to de-pressuirze the air springs ?

I made them out off nylon rod, asked for 30 mm, nearest was 31 so I just cut them to length. Had to jack the chassis up just enough to get them in, then just asked the air suspension to lower itself past the height you want the readings for. Check its sitting on the blocks then ask for the actual live heights, stick them back in. Left the access heights as they where.

Order some 30mm Nylon rod last night so will give it a try when it turns up.

The nylon rod being 31 mm actually helped. This meant they stayed up in the bump stops, if yours don't just wrap some tape round em until they do. My bump stops where a bit perished though so you may be ok with 30mm.

Thanks for the tip